Dave P wrote:
I've a 4ft by 4ft windo that I am planning to use to make a cold frame. I
intend to concrete the floor then on this lay bricks to a height of 15cm at
the front and 55cm at the back giving a slope on the window (roof).

Does this sound adequate for height, we are new gardners and builders and
see it being used for seedlings to go on into the veg plot. Would a deeper
cold frame be an advantage for other plants?

On the building side would I need to add plastiser to the mortar and use a
DPC?

thanks for any tips,

Dave



I wouldn't bother with a DPC, and as for plasticiser, just stick some
fairy liquid in the mix, it does the same job.